Bed 4 of the Geirud Fm, Geirud Section, Northern Iran: Late/Upper Frasnian, Iran
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Spiriferida
- Cyrtospiriferidae
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Cyrtospirifer (Cyrtospirifer) verneuili
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Cyrtospirifer (Cyrtospirifer) cf. syringothyriformis
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Ptychomaletoechia elburzensis
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R category | ||||||
| see common names | |||||||
Geography
| Country: | Iran | County: | Geirud |
| Coordinates: | 36.0° North, 51.5° East (view map) | ||
| Paleocoordinates: | 27.0° South, 78.4° East | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | small collection |
Time
| Period: | Devonian | Epoch: | Late/Upper Devonian |
| Stage: | Frasnian | 10 m.y. bin: | Devonian 4 |
| *Period: | Late/Upper Devonian | ||
| *International age/stage: | Late/Upper Frasnian - Early/Lower Fammenian | ||
| Key time interval: | Late/Upper Frasnian | ||
| Age range of interval: | 375.40000 - 372.20000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
Lithology and environment
| Primary lithology: | shelly/skeletal,gray,red,yellow calcareous grainstone |
| Lithology description: "biogenic calcarenite, grey, weathering reddish yellow, in thin nodular beds." | |
| Environment: | shallow subtidal indet. |
| Geology comments: no paleoenvironmental information is given. | |
Taphonomy
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | Type Section of the Geirud Fm | ||
| Database number: | 32701 | ||
| Authorizer: | A. Miller | Enterer: | J. Sessa |
| Modifier: | J. Sessa | Research group: | marine invertebrate |
| Created: | 2003-07-13 18:38:38 | Last modified: | 2003-07-13 22:05:43 |
| Access level: | the public | Released: | 2003-07-13 18:38:38 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 8787. | M. Gaetani. 1965. The Geology of the Upper Djadjerud and Lar Valleys (Northern Iran) II. Paleontology. Brachiopods and Molluscs from Geirud Formation, Member A (Upper Devonian and Tournaisian). Revista Italiano Paleontology 71(3):697-770 [A. Miller/J. Sessa/J. Sessa] |